Abstract:

As the depth map created by traditional belief propagation (BP：Belief Propagation) algorithm is not very accurate causing the distortion of the depth map rendering and threedimensional reconstruction.We proposed a stereo matching algorithm based on feedback to optimize the depth map. The traditional BP algorithm is used to get the depth map. We utilize the left eye viewpoint and depth information to render the right eye viewpoint which is to be compared with the real right eye viewpoint and send the result of comparison back to the data cost. The depth map will be created again with the new data cost. Experimental results show that by using the proposed algorithm, the PSNR（Peak Signal to Noise Ration) of the rendered viewpoint will enhance 02 dB.

Key words: depth map, stereo matching, belief propagation(BP), feedback